Πλοήγηση ανά Θέμα "Deformation"
Αποτελέσματα 1-20 από 33
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Analytical methodologies for buried pipeline design in geohazard areas
(2016)In geohazard areas, buried pipelines are subjected to permanent ground deformations, which constitute major threats for their structural safety. Geohazards include seismic fault movement, liquefaction-induced lateral ... -
Analytical model for the strain analysis of continuous buried pipelines in geohazard areas
(2017)In geohazard areas, buried pipelines are subjected to permanent ground-induced deformations, which constitute major threats for their structural safety. Geohazards include seismic fault movement, liquefaction-induced lateral ... -
Buckling and classification of high-strength steel CHS tubular members under axial compression and bending
(2012)EN 1993-1-1 provisions classify high-strength steel CHS members with relatively low values of D/t ratio as Class 3 or 4, so that their strength is based on elastic behavior only, neglecting their capability of sustaining ... -
Ca, P and collagen fibrils period measurements in the vertebras of lordotic Sparus aurata
(2015)Skeletal deformities of Gilthead seabream (Sparus aurata) is a major factor that effects the production cost, the external morphology of the fish as well as its survival and growth. Adult individuals of S. aurata were ... -
Deformation vs. flow and wavelet-based models of gradient plasticity: Examples of axial symmetry
(2006)The modest goal of this article - the first in a series of three dedicated to Kirk Valanis - is to discuss and compare (in terms of their constitutive and variational formulation, boundary conditions and size-dependent ... -
The effect of stress triaxiality on the phase transformation in transformation induced plasticity steels: Experimental investigation and modelling the transformation kinetics
(2021)In situ multiaxial loading during neutron diffraction tests were undertaken on a low-alloyed Quenched and Partitioning (Q&P) Transformation Induced Plasticity (TRIP) Bainitic Ferrite (TBF) steel with dispersed austenite ... -
EFFECTS of MULTI-SCALE STRUCTURE and FRACTAL DIMENSION on the FRICTION MECHANISM in ROUGH SURFACES under HORIZONTAL DYNAMIC EXCITATION
(2019)Tribological information obtained for contacts with multiple-asperity interaction is a challenging task. In this work, the friction mechanism that is developed between rough interfaces with asperities of different geometry ... -
Experimental Investigation of Steel Lap Welded Pipe Joint Performance under Severe Axial Loading Conditions in Seismic or Geohazard Areas
(2020)Welded lap joints are commonly used in large-diameter steel pipelines for water transmission. Their structural performance constitutes a key consideration for safeguarding pipeline integrity with no loss of pressure ... -
Facial Expression Recognition Using Adaptive Neuro-fuzzy Inference Systems
(2018)Facial expressions form a universal language of emotions, which can instantly express a wide range of emotional states and feelings. The analysis of facial expressions and the accurate recognition of their emotional content ... -
Failure analysis and fatigue life assessment of a redesigned aircraft landing gear component
(2013)The present study deals with the failure analysis, the redesign and the fatigue life assessment of a rod end component of the North American T-2 jet trainer aircraft, nose landing gear (NLG) system. The rod ends suffer ... -
Fluid Penetration in a Deformable Permeable Web Moving Past a Stationary Rigid Solid Cylinder
(2017)We present an analysis for the process of fluid infiltration into a deformable, thin and permeable web that moves in close proximity over a rigid and stationary solid cylinder. While this is a process of significant interest ... -
High railway rolling noise reduction by combining existing track based solutions
(2015)The overall objective of the EU funded Quiet-Track project is to provide step changing track based noise mitigation systems and maintenance schemes for the railway rolling noise. This paper focuses on the combination of ... -
Improving the Performance of Steel Pipe Welded Lap Joints in Geohazard Areas
(2016)Finite element simulation of the structural performance of stiffened lap welded pipeline joints was performed, subjected to severe axial and bending loading conditions, resulting from ground-induced actions, in the presence ... -
Incremental variational procedure for elasto-viscoplastic composites and application to polymer- and metal-matrix composites reinforced by spheroidal elastic particles
(2016)This paper presents an alternative formulation of the incremental variational procedure (IVP) of Lahellec and Suquet (2013) to estimate the macroscopic response and field statistics in elasto-viscoplastic composites. The ... -
The influence of fines on the deformation properties of sands imposed to dynamic loading
(2015)This paper presents the results of a laboratory investigation into the influence of fines content on the deformation properties of sandy soils. In particular, specimens of artificial mixtures of sand with nonplastic and ... -
An intelligent tool for anatomical object segmentation using deformable surfaces
(2012)Image segmentation is a very active area of research in machine vision. In this work, an innovative methodology is presented that allows the segmentation of objects in three-dimensional images with initial user intervention. ... -
A mathematical method for the determination of the critical axial loads of continuous beams with unilateral constraints for various initial geometric imperfections
(2013)This paper deals with the calculation of the axial critical loads of continuous beams with unilateral constraints. The paper emphasizes in the determination of the instability loads of continuous beams with initial geometric ... -
Mechanics models for hydrogen embrittlement mechanisms
(2005)Of the many suggestions of hydrogen-induced degradation of engineering materials, two mechanisms appear to be viable in non-hydride forming systems: hydrogen-enhanced localized plasticity (HELP) and hydrogeninduced decohesion. ... -
A multi resolution study on the behavior of fractal interfaces with unilateral contact conditions
(2013)In this paper, the influence of the resolution of fractal interfaces to the contact area is investigated by taking into account shear displacements. The paper is based on fractal approaches for the modeling of the multiscale ... -
Multimodal sign language recognition via temporal deformable convolutional sequence learning
(2020)In this paper we address the challenging problem of sign language recognition (SLR) from videos, introducing an end-to-end deep learning approach that relies on the fusion of a number of spatio-temporal feature streams, ...